CN101123528B - Stream media system and creation method for Internet network TV - Google Patents
Stream media system and creation method for Internet network TV Download PDFInfo
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- CN101123528B CN101123528B CN2007101296188A CN200710129618A CN101123528B CN 101123528 B CN101123528 B CN 101123528B CN 2007101296188 A CN2007101296188 A CN 2007101296188A CN 200710129618 A CN200710129618 A CN 200710129618A CN 101123528 B CN101123528 B CN 101123528B
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Abstract
The present invention discloses a stream media system of an Internet television, which comprises a live media distribution unit, which is used to produce stream media during the live broadcast of services, a media storage transmission unit, which is used to store and transmit the stream media produced by the live media distribution unit, and a media control unit, which is used to manage the stream media produced by the live media distribution unit and stored and transmitted by the media storage transmission unit. The present invention also discloses a method of the stream media system, by which the stream media system creates the Internet television. The present invention avoids the overload of a certain IPTV stream media server, improves the performance of an IPTV system and reduces the construction cost of the system.
Description
Technical field
The present invention relates to IPTV (Internet TV) communication technical field, particularly, the streaming media server that relates to CDN (media delivery) stream media system of IPTV is effectively disposed and networking.
Background technology
The IPTV system can be directly transmits high-quality TV programme and video content to client's television set or computer, in the traditional voice/data traffic of protection, can also more extensive and interactive service be provided for existing client.Operator can be engaged in expanding in the basic enterprising industry that the traditional tv program broadcasts, and multiple new services is provided.For example, video request program (VoD), interactive TV, Karaoke, television monitoring, Internet video, recreation and information service etc.Client not only can watch the TV programme of every day in real time, but also the mode that can postpone watches, and is very convenient.IPTV has expanded the notion of " seeing TV "." seeing TV " no longer is to watch passively on the original meaning, and spectators can interactively select and control the rating content, are enjoying new experience.For operator, except traditional TV programme, IPTV can also transmit more senior content on existing broadband infrastructure.These all help to bring new business, new income, improve customer satisfaction and keep the client here.
At present; The IPTV different business is EPG (electronic program guides) tissue through classification mainly; The user is switched between the different EPG pages through key up and down on using a teleswitch and acknowledgement key and is selected the professional and concrete program of different IPTV, and CDN and stream media system through IPTV come to serve for the end user provides IPTV.
The CDN of IPTV system and streaming media server are imperative equipment in the IPTV network, and its function mainly comprises stream service, content stores, content distribution and transmission.Yet existing stream media equipment does not have function distinguishing, and promptly each streaming media server has FtpServer, FtpClient, channel storage, media services etc. simultaneously concurrently.The defective of this stream media system is exactly just because of there is not the function of convection media server to distinguish; When CDN creates living broadcast channel, FtpServer and specifies, is redirected on the interface; Just might all select same streaming media server; Thereby will cause bigger pressure to this streaming media server, the performance of IPTV system is caused bigger influence, especially deployment and the commercialization to large-scale IPTV system is extremely disadvantageous.
Summary of the invention
Consider the problems referred to above and make the present invention; For this reason, main purpose of the present invention is, a kind of stream media system of Internet TV is provided; Comprise: three kinds of streaming media server groups that have difference in functionality respectively; And every kind of function singleness that the streaming media server group has, wherein, each streaming media server group comprises the streaming media server of a function singleness at least according to the function difference that it had; Streaming media server comprises one of following unit according to the function of the streaming media server group under it: live distribution of media unit is used for when live broadcast service, producing Streaming Media; The media store transmission unit is used to store and transmit the Streaming Media that live distribution of media unit produces; And media control unit, be used to manage by live distribution of media unit and produce and by the Streaming Media of storage of media store transmission unit and transmission.
In this system, live distribution of media unit, media store transmission unit and media control unit all have the channel memory function.Streaming Media comprises unicast stream medium, multicast data flow medium and broadcasting Streaming Media.The management that media control unit provides comprises managing medium resource, protocol processes, media schedule and file fragmentation positioning service.Each independent configuration in live distribution of media unit, media store transmission unit and the media control unit.
According to a further aspect in the invention, provide a kind of stream media system according to the present invention to create method of channel, having comprised: sent the request of creating channel to streaming media server via the media delivery network manager; Streaming media server selects a streaming media server with live distribution of media unit to create channel from the streaming media server group with channel memory function; And return the result who creates channel via network manager.
In the method, the streaming media server that has a channel memory function comprises live distribution of media unit, media store transmission unit and media control unit.When creating center channel, from live distribution of media unit, select one and create center channel with channel memory function.When creating repeater channel; Have from current stream media node unit in the live distribution of media unit of channel memory function and select one; And have from upper level stream media node unit in the live distribution of media unit of channel memory function and select one, create repeater channel.
Through above-mentioned aspect of the present invention; Avoid some IPTV streaming media server overloads etc., improved the performance and the construction cost that has reduced system of IPTV system, help to improve IPTV operator income; Improve customer satisfaction and keep the client here, the carrying out and promote of the IPTV business that helps.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 shows the sketch map according to the stream media system of the Internet TV of the embodiment of the invention;
Fig. 2 shows the flow chart according to the method for the stream media system of the Internet TV of the embodiment of the invention;
Fig. 3 shows according to the IPTV system group network of the embodiment of the invention and the sketch map of deployment;
Fig. 4 shows the sketch map according to the IPTV stream media system structure of the embodiment of the invention; And
Fig. 5 shows the sketch map of creating based on IPTV system access channel of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Fig. 1 shows the sketch map according to the stream media system of the Internet TV of the embodiment of the invention.As shown in Figure 1, comprising: live distribution of media unit 102 is used for when live broadcast service, producing Streaming Media; Media store transmission unit 104 is used to store and transmit the Streaming Media that live distribution of media unit produces; And media control unit 106, be used to manage by live distribution of media unit and produce and by the Streaming Media of storage of media store transmission unit and transmission.
In this system, live distribution of media unit 102, media store transmission unit 104 and media control unit 106 all have the channel memory function.Streaming Media comprises unicast stream medium, multicast data flow medium and broadcasting Streaming Media.The management that media control unit provides comprises managing medium resource, protocol processes, media schedule and file fragmentation positioning service.Each independent configuration in live distribution of media unit, media store transmission unit and the media control unit.
Fig. 2 shows the flow chart according to the method for the stream media system of the Internet TV of the embodiment of the invention.As shown in Figure 2, comprising: step S202, send the request of creating channel via the media delivery network manager to streaming media server; Step S204, streaming media server select a streaming media server to create channel in having the streaming media server group of channel memory function; And step S206, return the result who creates channel via network manager.
In the method, the streaming media server that has a memory function comprises live distribution of media unit, media store transmission unit and media control unit.When creating center channel, from live distribution of media unit, select one and create center channel with channel memory function.When creating repeater channel; Have from current stream media node unit in the live distribution of media unit of channel memory function and select one; And have from a last stream media node unit in the live distribution of media unit of channel memory function and select one, create repeater channel.
Fig. 3 shows according to the IPTV system group network of the embodiment of the invention and the sketch map of deployment.As shown in Figure 3, in the layout of IPTV grid, can be divided into head end, 1 grade of Centroid, 2 grades of Centroids and fringe node several sections.Wherein, head end is a node physically, mainly be made up of audio-video collection and video and audio coding, and the audio-video frequency content after will encoding sends to 1 grade of Centroid with multicast or mode of unicast, or sends to all nodes with the whole network forms of broadcasting.The division of these nodes can be carried out with the administrative region, and for example, 1 grade of Centroid can be provincial Centroid, and 2 grades of Centroids can be the city-level Centroids, and fringe node can be this incity regionality node.1 grade of Centroid can be disposed IPTV streaming media server and service operation management platform etc., and they can be in identical or different position; 2 grades of Centroids and fringe node can be disposed streaming media server etc.; Fringe node mainly is made up of streaming media server.
The Video Codec of head end will compress, encode from the video flowing that video source devices such as satellite receiving equipment, DVD send; Convert the bag that can on network, transmit into; Be distributed in the streaming media server of 1 grade of Centroid and go; Distribute by this streaming media server again, in the streaming media server that is distributed to each fringe node, thereby enter into the network of each IPTV service provider; Also can pass through the whole network multicast, content is distributed in each node in the IPTV network go.In each IPTV service provider network, STB is decoded the bag that streaming media server sends, and finally becomes the video format that television set can be play.The service operation management platform comprises Content Management Platform, service supporting platform two parts.
The deployment of IPTV grid, the configuration of each Centroid and fringe node can decide the parameters such as number of streaming media server according to factors such as the historical data of operator, number of users, service quality.
In addition, about the introducing and the service management of IPTV content, 1 grade of Centroid comprises the introducing and the management (regulation of metadata and the extraction of contents attribute etc.) of programme televised live and request program.The programme televised live of 1 grade of Centroid is sent to 2 grades of Centroids or directly is sent to fringe node, and 2 grades of Centroids also can provide programme televised live (need add head end).The request program of 1 grade of Centroid can be passed through the CDN distributing network, the request program of 1 grade of Centroid is pushed to 2 grades of Centroids, or is pushed directly to fringe node.
1 grade of interior IPTV business platform of Centroid can be provided by how tame equipment vendors; According to 1 grade of user area range size that Centroid covered; Can be divided into one or more 2 grades of Centroids, 2 grades of Centroids are divided into one to a plurality of IPTV edges of regions nodes.The covering of IPTV network is flexible relatively, and coverage little district or county to districts and cities arrive several districts and cities even the whole province greatly until the whole nation.The streaming media server of fringe node can provide contents such as live and program request to the IPTV business platform.
Fig. 4 shows the sketch map according to the IPTV stream media system structure of the embodiment of the invention.As shown in Figure 4; Here it is referred to as general streaming media server (USS); It is the equipment that the required media resource of various IPTV business can be provided; For example, media store, stream service and content distribution/transmission, and functions such as playback, recording, DTMF collect the digits, fax, meeting, TTS and ASR, video playback, video record, video conference.MRF network element under the IMS framework also is from media server evolution in general.Each USS is different according to function, comprises the streaming media server of following function singleness at least:
(1) MCU is a media control unit, and managing medium resource, protocol processes, media schedule, file fragmentation positioning service are provided, and this plate adopts 1+1 backup.
(2) MSTU is the media store transmission unit, mainly bears media store and transformation task, and this plate adopts the N+1 backup.
(3) MDU is live distribution of media unit, produces clean culture/multicast Media Stream when being primarily implemented in live broadcast service.
The capital equipment of 1 grade of Centroid as shown in Figure 3,2 grades of Centroids and fringe node is a streaming media server.On these streaming media servers, can create the content of center/repeater channel or storage VOD and time-moving television.The capacity of the quantity of streaming media server and its storage can be decided by IPTV professional number of users, channel quantity and VOD film source quantity and user's quality of server (QoS).
Television content is from head end, is issued to each fringe node through center/repeater channel of on said streaming media server, being created.That is to say that the terminal of the content of TV from the head end to user, centre have experienced the streaming media server of 1 grade of Centroid, 2 grades of Centroids and fringe node.Prior art is in establishment center/repeater channel; Do not distinguish the function type of streaming media server self; Tend to cause the load of streaming media server wherein uneven, and can't carry out effective networking adjustment, thereby cause quality of services for users seriously to descend.
Fig. 5 shows the sketch map of creating based on IPTV system access channel of the present invention.As shown in Figure 5, its channel creation flow process is roughly following:
Operating personnel initiate ordering to CDN MANAGER (manager) of channel creation through the WEB interface;
Does the channel that CDN MANAGER checking will be created exist? If do not exist and then create a new channel, and request is sent to CDN AGENT (acting server) for this reason;
The quota of this VCDN node of CDN AGENT inspection.If quota satisfies then turns to next step, otherwise, the result that channel creation is failed returned to CDN MANAGER.
If the quota of this VCDN node satisfies the demand of creating channel, then CDN AGENT sends the channel creation order to streaming media server;
Streaming media server selects an available streaming media server to create channel from channel " storage server " group;
Streaming media server with " storage server " function is created channel;
Streaming media server returns the result of establishment channel to CDN AGENT;
CDN AGENT returns the result of establishment channel to CDN MANAGER; And
CDN MANAGER returns the result of establishment channel to CDN WEB.
Based on the present invention, streaming media server is divided into the streaming media server of a plurality of function singlenesses according to function after, can improve and improve the performance of existing IPTV system, the maintainability of enhanced system.For example, when carrying out the direct broadcast band establishment through CDN, existing scheme is following:
When creating center channel, do not distinguish the function type of streaming media server self, select available streaming media server to do the establishment of center channel.
When creating repeater channel, do not distinguish the function type of this pop (stream media node) unit and upper level pop unit stream media server; Select an available streaming media server in this pop unit, select the streaming media server at the center channel place of this channel to carry out both relaying establishments in upper level pop unit.
Should existing scheme shortcoming be exactly, not distinguish the function type of streaming media server, can't carry out effective networking adjustment according to the load of streaming media server.
Through above-mentioned aspect of the present invention, can improve above-mentioned existing direct broadcast band and create scheme, that is: when creating center channel, from channel " MDU storage server " group, select an available streaming media server to create channel.When creating repeater channel, select available " a MDU channel storage server ", select an available MDU server from upper level pop unit from this pop unit.In addition, through the present invention, system carries out dilatation etc. at an easy rate.Can come the quantity of definite each MDU, MSTU and MCU that is increased according to the number of users that is increased, again they inserted in the corresponding machine frame of USS.
In sum, through the present invention, avoid some IPTV streaming media server overloads etc.; The performance and the construction cost that has reduced system of IPTV system have been improved; Help to improve IPTV operator income, improve customer satisfaction and keep the client here, the carrying out and promote of the IPTV business that helps.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the stream media system of an Internet TV; It is characterized in that; Comprise: three kinds of streaming media server groups that have difference in functionality respectively, and every kind of function singleness that the streaming media server group has, wherein; Each said streaming media server group comprises the streaming media server of a function singleness at least according to the function difference that it had, and said streaming media server comprises one of following unit according to the function of the streaming media server group under it:
Live distribution of media unit is used for when live broadcast service, producing Streaming Media;
The media store transmission unit is used to store and transmit the said Streaming Media that said live distribution of media unit produces; And
Media control unit is used to manage by said live distribution of media unit and produces and by the said Streaming Media of said media store transmission unit storage and transmission.
2. the stream media system of Internet TV according to claim 1 is characterized in that, said live distribution of media unit, said media store transmission unit and said media control unit all have the channel memory function.
3. the stream media system of Internet TV according to claim 2 is characterized in that, said Streaming Media comprises unicast stream medium, multicast data flow medium and broadcasting Streaming Media.
4. the stream media system of Internet TV according to claim 3 is characterized in that, the said management that said media control unit provides comprises managing medium resource, protocol processes, media schedule and file fragmentation positioning service.
5. the stream media system of Internet TV according to claim 4 is characterized in that, each the independent configuration in said live distribution of media unit, said media store transmission unit and the said media control unit.
6. create method of channel according to each described stream media system in the claim 1 to 5, it is characterized in that, comprising:
Send the request of creating channel to streaming media server via the media delivery network manager;
Said streaming media server selects a streaming media server with live distribution of media unit to create said channel from the streaming media server group with channel memory function; And
Return the result who creates said channel via said network manager.
7. method according to claim 6 is characterized in that, when creating center channel, from the said live distribution of media unit with said channel memory function, selects one and creates said center channel.
8. method according to claim 6; It is characterized in that; When creating repeater channel; Have from current stream media node unit in the said live distribution of media unit of said channel memory function and select one, and have from upper level stream media node unit in the said live distribution of media unit of said channel memory function and select one, create said repeater channel.
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| CN2007101296188A CN101123528B (en) | 2007-07-23 | 2007-07-23 | Stream media system and creation method for Internet network TV |
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| CN2007101296188A CN101123528B (en) | 2007-07-23 | 2007-07-23 | Stream media system and creation method for Internet network TV |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8626822B2 (en) | 2008-08-28 | 2014-01-07 | Hewlett-Packard Development Company, L.P. | Method for implementing network resource access functions into software applications |
| CN101667877B (en) * | 2008-09-05 | 2011-04-20 | 中兴通讯股份有限公司 | Method and system used for next generation network for implementing user live broadcast |
| CN101431535B (en) * | 2008-12-01 | 2011-12-28 | 中兴通讯股份有限公司 | Method for implementing relay channel |
| CN101651823B (en) * | 2009-08-16 | 2011-08-24 | 中兴通讯股份有限公司 | Streaming media server system and relevant method thereof |
| CN101969434B (en) * | 2010-09-30 | 2014-04-09 | 中兴通讯股份有限公司 | Method and system for creating channel |
| CN102231749B (en) * | 2011-08-12 | 2013-12-11 | 乐视网信息技术（北京）股份有限公司 | System and method for transmitting live stream by utilizing content delivery network (CDN) |
| CN102523298A (en) * | 2011-12-22 | 2012-06-27 | 上海因特奈信息有限公司 | Video acquiring and sharing system based on mobile terminal and process method thereof |
| EP3076675B1 (en) * | 2013-04-06 | 2019-08-21 | Miranda Technologies Partnership | Systems and methods for media distribution and management |
| CN104301741B (en) * | 2014-09-26 | 2018-06-22 | 北京奇艺世纪科技有限公司 | A kind of data broadcast system and method |
| CN104469262A (en) * | 2014-12-26 | 2015-03-25 | 国家电网公司 | Integrated video conference system |
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| CN1816053A (en) * | 2006-03-10 | 2006-08-09 | 清华大学 | Flow-media direct-broadcasting P2P network method based on conversation initialization protocol |
| CN1976439A (en) * | 2006-12-01 | 2007-06-06 | 中山大学 | Method for realizing picture-in-picture playing function in IPIV |
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| CN1816053A (en) * | 2006-03-10 | 2006-08-09 | 清华大学 | Flow-media direct-broadcasting P2P network method based on conversation initialization protocol |
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| CN1996886A (en) * | 2006-12-12 | 2007-07-11 | 中兴通讯股份有限公司 | Cleaning method of redundant data of the IPTV system |
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